I can think of three things.
it could be a bad distributor cap and or the rotor.
the wire going from the coil to the distributor cap could be bad.
the coil itself could be bad.
check the wire running from the coil to the cap and make sure its properly seated, that's usually what happens to me after some hard wheeling in mine.
First make sure it's really not getting fire, go to sears and get a spark testor I think they're around $15. If it's really not getting spark to any of the cylinders, check the coil wire, then the coil, then the distributor cap and rotor. what is it doing ?? Is it fluding from too much nfuel when cranking over id there any spark? what do the plugs look like.
is your timing off? are you getting any spark at all?
its probly the condencer
most likely is your crank position sensor. located on the bell housing.
Below
yes, any top for an 1987-1995 can be switched out
electronic spark modulator bad.
The 1990 Jeep Wrangler does not have a stated life span. The life span of any vehicle is dependent upon several factors.
Battery? No spark? No fuel? Any trouble codes in the computer?
Any name brand 10w30.
If your kick starter is not getting any compression, you probably pulled the spark plug.
map sensor